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Military Occupational Specialty.

Tracked Vehicle Repairer.

The American Army has the most high-tech, up-to-date equipment in the world, and the men and women who keep this equipment at top performance are the Soldiers in the Tracked Vehicle Repairer MOS.

After successfully completing 10 weeks of Army Basic Combat Training, you will attend 10 weeks of Advanced Individual Training at Fort Lee, Virginia..,

The Army will train you to remove and repair tracked vehicle components, such as engines, transmissions, steering controls, and hydraulic systems, vehicle air and liquid cooling systems, tracked hull electrical systems, and fire extinguisher/suppression systems.  You’ll also repair the tracked vehicle using battlefield damage assessment and repair—or BDAR.

You’ll also train to use advanced tools like digital multi meters and diagnostic equipment.

In addition, you’ll be taught to use electronic technical manuals, as well as complicated wiring diagrams and different types of schematics.

As a Tracked Vehicle Repairer, you’ll also train to replace engines, transmission breaks, injectors, and diesel power plants.

Soldier discusses what attracted them to this MOS.

Instructor describes what type of Soldier will succeed in this MOS.

After your advanced individual training, you’ll perform rewarding work where your duties may be repairing various vehicles in a shop or working in the field operating vehicles such as the M88.

For this work on tracked vehicles, you’ll have a complete tool box, including the Army’s best power tools.

Serving as a tracked vehicle repairer can help you transition from the military to the civilian employment sector because your skills in leadership, teamwork, and problem solving, combined with a more developed sense of responsibility, self-discipline, and motivation are skills and values in demand by civilian employers.

Soldier describes why they enjoyed the training.

Soldier describes how the skills in this MOS will help them succeed within the Army and beyond.

Keeping these high-tech, up-to-date Army tracked vehicles in action by maintaining and repairing them is the job of the men and women in Military Occupational Specialty…Tracked Vehicle Repairer.

Track Vehicle Repairer (91H)

  • Enlisted
  • Officer
  • Active Duty
  • Army Reserve
  • National Guard
  • Entry Level


The track vehicle repairer is primarily responsible for performing maintenance on tracked vehicles and supervising activities that include fuel and electrical system repair and maintenance.

Job Duties

  • Repair diesel power plants/packs, compression ignition engine fuel systems and compression ignition air induction systems
  • Fix vehicle air cooling systems and vehicle liquid cooling systems, and track hull electrical systems and automatic transmission assemblies
  • Service track vehicle cross drive transmission assemblies, transfer assemblies, hydraulic brake systems and fire extinguisher/suppression systems


Those who want to serve must first take the Armed Services Vocational Aptitude Battery, a series of tests that helps you better understand your strengths and identify which Army jobs are best for you.


Job training for a track vehicle repairer requires 10 weeks of Basic Combat Training and 13 weeks of Advanced Individual Training with on-the-job instructions. Part of this time is spent in the classroom and part in the field.

Some of the skills you’ll learn are:

  • Engine repair and tune up or replacement
  • Troubleshoot mechanical and electrical problems
  • Body repair and body panel replacement

Helpful Skills

  • Interest in auto mechanics and the industrial arts
  • Enjoy physical work
  • Troubleshooting and repairing mechanical problems

Required ASVAB Score(s)

Mechanical Maintenance (MM): 92
Mechanical Maintenance (MM): 87, General Technical (GT): 85

Learn more about the ASVAB and see what jobs you could qualify for.


Total compensation includes housing, medical, food, special pay, and vacation time. Learn more about total compensation.

Earn Cash For In Demand Jobs

You could earn up to $40,000 in cash bonuses just for enlisting under certain Military Occupational Specialties. Visit Jobs in Demand to see if this job qualifies for an enlistment bonus.

Education Benefits

In the Army, qualified students can earn full-tuition, merit-based scholarships, allowances for books and fees, plus an annual stipend for living expenses. Learn more about education benefits.

Future Civilian Careers

The skills you learn will help prepare you for a career with auto and construction equipment dealers and farm equipment companies. You’ll be able to pursue a career such as a garage mechanic, carburetor mechanic, transmission mechanic, radiator mechanic or construction equipment mechanic.


Those interested in this job may be eligible for civilian employment, after the Army, by enrolling in the Army PaYS program. The PaYS program is a recruitment option that guarantees a job interview with military friendly employers that are looking for experienced and trained Veterans to join their organization. Find out more about the Army PaYS Program at

  • AT&T, Inc.
  • Hewlett-Packard Company
  • Kraft Foods Global, Inc.
  • Sears Holdings Corporation
  • Time Customer Service, Inc.
  • Walgreen Co.